Automobile engine belt tool



J 3, 1 5 J D GILBREATH 2,599,102 7 AUTOMOBILE ENGINE BELT TOOL FiledMarch 15, 1949 Inventor .1 0 Gi/breafh Patented June 3, 1952 f 2.59am:

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- generator beltf-andafan-belt-selectively or tight surface-act,the:water pump pulleys of an engine and t m o ve vertically an adjustableelement which carries: aor; othenelement having one or. moreclampsthereomthe .clamps ..adapted to engage the under surface or.arties of'the engine accessories such as the undersurface of thegenerator pansy-ce-the sestsmer the fan shaft ,:,-whereby the fan mayibe lifted,,thereby tighteningithe proper belt and; whereby. thegeneratorsmay be lifted, thereby 'tightenirrgzthe appropriatewbelt. V 6'"f;

Anotherpurpose of this invention is to? lift the generator and fan ofcertain types of engines, .therebytightening the attendant belts bymeans of a standard which has curved feet at the end thereof connectedwith the remainder of the standard by means of offsets so that thetightening may take place at a point spaced from the vertical plane ofthe two water pump pulleys, thereby avoiding interference with theactual belt being, tightened when this operation is taking place.

Ancillary objects and features of novelty will become apparent to thoseskilled in the art, in following the description of the preferred formof the invention, illustrated in the accompanying drawings, wherein:

Figure '1 is the front view of an engine of a typical type having theinvention applied thereto and in partial operation;

Figure 2 is a front view of the standard or support;

Figure 3 is an elevational side view of the device shown in Figure 2,showing schematically and in phantom a. portion of an engine toillustrate the arrangement of the tool with respect to said engine;

Figure 4 is a fragmentary elevational view showing the arrangement ofthe generator pulley clamp on the said generator pulley;

Figure 5 is a longitudinal sectional view of the vertically adjustableelement for lifting the clamps and Figure 6 is an elevational detail ofconstruction showing particularly a means for spacing the generator belta small amount from the pulley.

I (o1. ass-9e.

' ment ofparts. This The present invention is adaptable for use inconnection with various types of engines. Pref- -21 arrangementis;sflnwmr in Figure 1,. illustrating ,a -popular make-engine. There:is. disclosedgas-y conventionakqand old; botln structure and:arrangements arr .englne bloekqlll having. heads '12 ;and.;. l4;respecti gig; a. timing;- case i&,,-. motormounts i 8 and and aicranleshaft operated double sheave- 2;.-18,

generator bracket 25 is attached. to. the; engine block in the'usual-manner and there. supporting a fan pulley 28 carriedt b N eratorbracket 26.- Ac, generator pulley 30;.i attached .to the'shaft of the'generator.;. 32 in the usualmanner. There issupplied. in-the ;i'llu stra tionqa-pairpfs'water pump pulleys 3:4 and, g; spectively which aremounted in a vex: cal

plane and which; are horizontally spaced from each other" asis-conventionalincerta engines. .1. 11

A "first belt; 1 38* of conventional; description isentrained; aroundrgthe-two water;-

13m 34: and-' 3 6=, thedouble sheave -22 anm the erator; pulley," 30;; Asecond belt-.4li. alsow pix-cert: ventional description is alsoentrained around the double sheave 22 and the fan pulley 28. It issometimes necessary to tighten either the belt 38 or the belt 40 or bothbelts. Accordingly, a tool is provided for this purpose. The toolconsists of a support or standard 42 having smoothly curved feet 44 and46 respectively at the bottom thereof. The support 42 is made of a pairof legs 48 and. 50 respectively which are firmly attached to a smallcase or housing 52 at one end and which have offsets 54 and 56respectively at the opposite end. These oil'- sets terminate indownwardly extending feet 46 and 44 respectively adapted to embracesomething less than half of the peripheral surface of the water pumppulleys 34 and 36, respectively, and on the inside of the belt 38. Theoffset makes it possible to insert the tool and more specifically thestandard or support 42 and leave working room so that the generator andgenerator pulley may be lifted.

The housing 52 has a shank 60 mounted for rotation therein and there arethreads 62 thereon. A handle 64 may be disposed at the top end of theshank for facility in rotation. A threaded collar =56 is disposed withinthe housing 52 and it has a hook or projecting member 68 fixed theretofor vertical movement therewith. A slot 12 is formed in the side of thehousing 52 with the projecting member 68 passed therethrough.

Accordingly, upon rotation of the shank 50, the collar 65 is lifted orlowered by means of the threaded connection between the two and the hookor projecting member 68 is raised or lowered, depending on whichdirection the shank is rotated.

A flexible member, such as a chain 16, is attached to the projectingmember or hook 68 by If itis desired the belt 40 or independently adjustthe belt 40 l a rod bent to form an eye 82 at the top thereof and havingoffset portions 84 at theopposite ends thereof. A smoothly curved cradlemember 86 is carried by the ofisets or offset portions 84. 'It is thiscradle member which is adapted to be dis-' posed beneath the said pulley30.

It is quite apparent that upon raising and lowering the hook 68, thebelt 38 may be manipulated fortightening. v r

to either simultaneously adjust with' res'pect' to the belt 38, this maybe accom both. It requires only a single manipulation of one handle 6|in order to raise the desired pulleys, thereby tightening the belts asnecessary. Often the generator belt is pulled too tight, causingpremature" wear on the belt. To avoid this, it is only necessary tomanipulate the adjustable elements SI and '92 which are carried at theends of the cradle" member 86 and which a 'screw or cap screws. -Whenthe clamp 80 is in position below the generator pulley 30, the elementsSI and 92 4 will spread the belt slightly so that after fastening thegenerator in place on the engine, a proper amount of slack will remainin the belt 38.

It, is apparent that variations may be made without departing from thespiritjof the invention.

Having described the invention, what is claimed as new is:

For use with an engine which has a plurality of pulleys, a tool fortightening a belt entrained about the pulleys comprising a standard anda clamp; means carried by said standard and attached to said clamp forraising and lowering said clamp, the clamp including a curved cradlemember adapted to detachably engage the lower surface of one of thepulleys, means carried bysaid standard for supporting said'standard onportions of the periphery of at least two other pulleys, and adjustablemembers carried by said curved cradle member to engage said belt;whereby when said cradle member is lifted said adjustable members engagesaid belt and hold it'spaced slightly from the pulley which is contactedby said curved cradle member. 7 I V I 7 JD GILBREATH.

REFERENCES CITED The following references are'of record in the file ofthis patent:

Roddewig'et al. Apr. l4, 1936

